The KRISS MagEx 2 is the ultimate capacity extending base plate for your factory standard Glock magazines. It is made up of the extended baseplate outer sleeve and extended spring constructed of durable and lightweight reinforced composites. Combining the MagEx Kit 2 with the factory standard Glock magazine body and follower is a perfect match of reliable feeding toughness and aesthetics for the KRISS Vector. It can be used for your KRISS Vector Glock 20 handgun and your Glock 20 magazinecompatible pistol caliber carbine.